title: The Bain anesthesia circuit.
mesh_terms: D000375:Aging; D000758:Anesthesia; D000776:Anesthesiology / Q000295:instrumentation*; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D012119:Respiration; D012121:Respiration, Artificial / Q000295:instrumentation
chemical_list: D002245:Carbon Dioxide